[gcc r11-8091] testsuite: Add some vect_variable_length XFAILs

[Richard Sandiford <rsandifo@gcc.gnu.org>]

https://gcc.gnu.org/g:00138f9b2b96b61f49605fa261012a330b2668b1

commit r11-8091-g00138f9b2b96b61f49605fa261012a330b2668b1
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Fri Apr 9 13:43:18 2021 +0100

    testsuite: Add some vect_variable_length XFAILs
    
    This patch adds XFAILs for some tests that fail with variable-length
    vectors.
    
    For pr96573.c I'd wondered about instead extending the regexp.
    The code we generate isn't very good though, so it doesn't seem
    worth matching.  (Fixing the bad code is on the todo list.)
    
    gcc/testsuite/
            * g++.dg/tree-ssa/pr83518.C: XFAIL for vect_variable_length.
            * gcc.dg/pr96573.c: Likewise.
            * gcc.dg/tree-ssa/pr84512.c: Likewise.
            * gcc.dg/vect/bb-slp-43.c: Likewise.
            * gcc.dg/vect/slp-reduc-11.c: Likewise.

Diff:
---
 gcc/testsuite/g++.dg/tree-ssa/pr83518.C  | 2 +-
 gcc/testsuite/gcc.dg/pr96573.c           | 2 +-
 gcc/testsuite/gcc.dg/tree-ssa/pr84512.c  | 2 +-
 gcc/testsuite/gcc.dg/vect/bb-slp-43.c    | 2 +-
 gcc/testsuite/gcc.dg/vect/slp-reduc-11.c | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr83518.C b/gcc/testsuite/g++.dg/tree-ssa/pr83518.C
index 3e153c51369..b8a2bd1ebbd 100644
--- a/gcc/testsuite/g++.dg/tree-ssa/pr83518.C
+++ b/gcc/testsuite/g++.dg/tree-ssa/pr83518.C
@@ -24,4 +24,4 @@ unsigned test()
   return sum;
 }
 
-/* { dg-final { scan-tree-dump "return 15;" "optimized" } } */
+/* { dg-final { scan-tree-dump "return 15;" "optimized" { xfail vect_variable_length } } } */
diff --git a/gcc/testsuite/gcc.dg/pr96573.c b/gcc/testsuite/gcc.dg/pr96573.c
index 63db69df029..c7d8f9eb994 100644
--- a/gcc/testsuite/gcc.dg/pr96573.c
+++ b/gcc/testsuite/gcc.dg/pr96573.c
@@ -2,7 +2,7 @@
 /* { dg-do compile { target { lp64 || ilp32 } } } */
 /* { dg-require-effective-target bswap } */
 /* { dg-options "-O3 -fdump-tree-optimized" } */
-/* { dg-final { scan-tree-dump "__builtin_bswap\|VEC_PERM_EXPR\[^\n\r]*7, 6, 5, 4, 3, 2, 1, 0" "optimized" } } */
+/* { dg-final { scan-tree-dump "__builtin_bswap\|VEC_PERM_EXPR\[^\n\r]*7, 6, 5, 4, 3, 2, 1, 0" "optimized" { xfail vect_variable_length } } } */
 
 typedef __SIZE_TYPE__ size_t;
 
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr84512.c b/gcc/testsuite/gcc.dg/tree-ssa/pr84512.c
index 3c027012670..496c78b28dc 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pr84512.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr84512.c
@@ -13,4 +13,4 @@ int foo()
 }
 
 /* Listed targets xfailed due to PR84958.  */
-/* { dg-final { scan-tree-dump "return 285;" "optimized" { xfail { amdgcn*-*-* } } } } */
+/* { dg-final { scan-tree-dump "return 285;" "optimized" { xfail { amdgcn*-*-* || vect_variable_length } } } } */
diff --git a/gcc/testsuite/gcc.dg/vect/bb-slp-43.c b/gcc/testsuite/gcc.dg/vect/bb-slp-43.c
index 40bd2e0dfbf..a65d9513c4d 100644
--- a/gcc/testsuite/gcc.dg/vect/bb-slp-43.c
+++ b/gcc/testsuite/gcc.dg/vect/bb-slp-43.c
@@ -14,4 +14,4 @@ f (int *restrict x, short *restrict y)
 }
 
 /* { dg-final { scan-tree-dump-not "mixed mask and nonmask" "slp2" } } */
-/* { dg-final { scan-tree-dump-not "vector operands from scalars" "slp2" { target { { vect_int && vect_bool_cmp } && { vect_unpack && vect_hw_misalign } } } } } */
+/* { dg-final { scan-tree-dump-not "vector operands from scalars" "slp2" { target { { vect_int && vect_bool_cmp } && { vect_unpack && vect_hw_misalign } } xfail vect_variable_length } } } */
diff --git a/gcc/testsuite/gcc.dg/vect/slp-reduc-11.c b/gcc/testsuite/gcc.dg/vect/slp-reduc-11.c
index a2f86fb8d66..260d65cd497 100644
--- a/gcc/testsuite/gcc.dg/vect/slp-reduc-11.c
+++ b/gcc/testsuite/gcc.dg/vect/slp-reduc-11.c
@@ -16,5 +16,5 @@ double dotprod(const double *a, const double *b, unsigned long long n)
 
 /* We should use a SLP reduction even without -ffast-math by using a
    VF of one.  */
-/* { dg-final { scan-tree-dump "vectorizing stmts using SLP" "vect" } } */
+/* { dg-final { scan-tree-dump "vectorizing stmts using SLP" "vect" { xfail vect_variable_length } } } */
 /* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" } } */